A Google Maps Help thread has several business owners complaining that they keep getting an error from the Google Local Business Center category field that says:
Select at least 1 category that matches suggestions as you type
The issue is not that Google is now requiring businesses select a pre-defined category but that even when they do, they still get this error.
Mike Blumenthal has a picture of the error warning shown to these businesses.
There seem to be a small spike in complaints about this error in the past week or so.
Forum discussion at Google Maps Help.
